idler arm help

I am putting together the front suspension with all new parts. I just tightened up the idler arm from PST and it was basically locked. I took it off and checked it with the old one and it is the same, so I put it back on and hit it with a rubber mallet and it did break loose some. I can move it back and forth now but it's very hard to do. this isn't right - right? I am assuming that a new idler should go back and forth with minimal effort. Kind of a bummer since it's the whole mail order send it back for a new one in a couple weeks. Thanks in advance.